User Manual

address on the network. Computers use the IP address to identify and talk to each other over the
network. Choose a proper IP address which is unique and valid in your network environment.
Netmask
Setting Factory Default Necessity
E.g., 255.255.255.0 255.255.255.0 Required
A subnet mask represents all of the network hosts at one geographic location, in one building, or
on the same local area network. When a packet is sent out over the network, the NPort 5200 will
use the subnet mask to check whether the desired TCP/IP host specified in the packet is on the
local network segment. If the address is on the same network segment as the NPort 5200, a
connection is established directly from the NPort 5200. Otherwise, the connection is established
through the given default gateway.
Gateway
Setting Factory Default Necessity
E.g., 192.168.1.1 None Optional
A gateway is a network gateway that acts as an entrance to another network. Usually, the
computers that control traffic within the network or at the local Internet service provider are
gateway nodes. NPort 5200 needs to know the IP address of the default gateway computer in
order to communicate with the hosts outside the local network environment. For correct gateway
IP address information, consult the network administrator.
IP configuration
Setting Factory Default Necessity
Static
DHCP
DHCP/BOOTP
BOOTP
Static Required
In Dynamic IP environments, the firmware will retry 3 times every 30 seconds until network
settings are assigned by the DHCP or BOOTP server. The Timeout for each try increases from 1
second, to 3 seconds, to 5 seconds.
If the DHCP/BOOTP Server is unavailable, the firmware will use the default IP address
(192.168.126.254), Netmask, and Gateway for IP settings.